The Aspire NX75-Z 75 watt mod has a five button system making it ultra-intuitive. NX75 boasts one-button navigation between Temperature Control and Wattage mode. The NX75 series mods feature an all-new Customizable Firing Button Profiles (CFBP) function. CFBP allows for heat ramp-up (power curve) to be fine-tuned. This customization can be made with just a few button clicks. The NX75-Z also features Child Lock.